Rigid thick structure that to support the cell…..only in plant and bacteria cells

Energy derived from hot rocks and fluids beneath the earth’s surface is

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.